<template>
  <div>
    <el-tabs type="border-card">
      <el-tab-pane label="秒" v-if="shouldHide('second')">
        <CrontabSecond
          @update="updateCrontabValue"
          :check="checkNumber"
          :cron="crontabValueObj"
          ref="cronsecond"
        />
      </el-tab-pane>

      <el-tab-pane label="分钟" v-if="shouldHide('min')">
        <CrontabMin
          @update="updateCrontabValue"
          :check="checkNumber"
          :cron="crontabValueObj"
          ref="cronmin"
        />
      </el-tab-pane>

      <el-tab-pane label="小时" v-if="shouldHide('hour')">
        <CrontabHour
          @update="updateCrontabValue"
          :check="checkNumber"
          :cron="crontabValueObj"
          ref="cronhour"
        />
      </el-tab-pane>

      <el-tab-pane label="日" v-if="shouldHide('day')">
        <CrontabDay
          @update="updateCrontabValue"
          :check="checkNumber"
          :cron="crontabValueObj"
          ref="cronday"
        />
      </el-tab-pane>

      <el-tab-pane label="月" v-if="shouldHide('month')">
        <CrontabMonth
          @update="updateCrontabValue"
          :check="checkNumber"
          :cron="crontabValueObj"
          ref="cronmonth"
        />
      </el-tab-pane>

      <el-tab-pane label="周" v-if="shouldHide('week')">
        <CrontabWeek
          @update="updateCrontabValue"
          :check="checkNumber"
          :cron="crontabValueObj"
          ref="cronweek"
        />
      </el-tab-pane>

      <el-tab-pane label="年" v-if="shouldHide('year')">
        <CrontabYear
          @update="updateCrontabValue"
          :check="checkNumber"
          :cron="crontabValueObj"
          ref="cronyear"
        />
      </el-tab-pane>
    </el-tabs>

    <div class="popup-main">
      <div class="popup-result">
        <p class="title">时间表达式</p>
        <table>
          <thead>
            <th v-for="item of tabTitles" width="40" :key="item">{{ item }}</th>
            <th>Cron 表达式</th>
          </thead>
          <tbody>
            <td>
              <span>{{ crontabValueObj.second }}</span>
            </td>
            <td>
              <span>{{ crontabValueObj.min }}</span>
            </td>
            <td>
              <span>{{ crontabValueObj.hour }}</span>
            </td>
            <td>
              <span>{{ crontabValueObj.day }}</span>
            </td>
            <td>
              <span>{{ crontabValueObj.month }}</span>
            </td>
            <td>
              <span>{{ crontabValueObj.week }}</span>
            </td>
            <td>
              <span>{{ crontabValueObj.year }}</span>
            </td>
            <td>
              <span>{{ crontabValueString }}</span>
            </td>
          </tbody>
        </table>
      </div>
      <CrontabResult :ex="crontabValueString" />

      <div class="pop_btn">
        <el-button size="small" type="primary" @click="submitFill">确定</el-button>
        <el-button size="small" type="warning" @click="clearCron">重置</el-button>
        <el-button size="small" @click="hidePopup">取消</el-button>
      </div>
    </div>
  </div>
</template>

<script lang="ts" setup>
import CrontabSecond from './second.vue'
import CrontabMin from './min.vue'
import CrontabHour from './hour.vue'
import CrontabDay from './day.vue'
import CrontabMonth from './month.vue'
import CrontabWeek from './week.vue'
import CrontabYear from './year.vue'
import CrontabResult from './result.vue'
import { computed, defineEmits, defineProps, onMounted, Ref, ref, watch } from 'vue'

const cronsecond = ref(null)
const cronmin = ref(null)
const cronhour = ref(null)
const cronday = ref(null)
const cronmonth = ref(null)
const cronweek = ref(null)
const cronyear = ref(null)

const refs = ref<Record<string, Ref>>({})
onMounted(() => {
  refs.value.cronsecond = cronsecond
  refs.value.cronmin = cronmin
  refs.value.cronhour = cronhour
  refs.value.cronday = cronday
  refs.value.cronmonth = cronmonth
  refs.value.cronweek = cronweek
  refs.value.cronyear = cronyear
})

const props = defineProps({
  expression: {
    type: String,
    required: false
  },
  hideComponent: {
    type: Array
  }
})

const emit = defineEmits(['hide', 'fill'])

const tabTitles = ['秒', '分钟', '小时', '日', '月', '周', '年']

const crontabValueObj = ref({
  second: '*',
  min: '*',
  hour: '*',
  day: '*',
  month: '*',
  week: '?',
  year: ''
})

function shouldHide(key) {
  return !(props.hideComponent && props.hideComponent.includes(key))
}

function resolveExp() {
  // 反解析 表达式
  if (props.expression) {
    let arr = props.expression.split(' ')
    if (arr.length >= 6) {
      //6 位以上是合法表达式
      let obj = {
        second: arr[0],
        min: arr[1],
        hour: arr[2],
        day: arr[3],
        month: arr[4],
        week: arr[5],
        year: arr[6] ? arr[6] : ''
      }
      crontabValueObj.value = {
        ...obj
      }
      for (let i in obj) {
        if (obj[i]) {
          changeRadio(i, obj[i])
        }
      }
    }
  } else {
    // 没有传入的表达式 则还原
    clearCron()
  }
}

// 由子组件触发，更改表达式组成的字段值
function updateCrontabValue(name, value, from) {
  crontabValueObj.value[name] = value
  if (from && from !== name) {
    console.log(`来自组件 ${from} 改变了 ${name} ${value}`)
    changeRadio(name, value)
  }
}

function changeRadio(name, value) {
  let arr = ['second', 'min', 'hour', 'month'],
    refName = 'cron' + name,
    insValue

  if (!refs.value[refName]) return

  if (arr.includes(name)) {
    if (value === '*') {
      insValue = 1
    } else if (value.indexOf('-') > -1) {
      let indexArr = value.split('-')
      isNaN(indexArr[0])
        ? (refs.value[refName].cycle01 = 0)
        : (refs.value[refName].cycle01 = indexArr[0])
      refs.value[refName].cycle02 = indexArr[1]
      insValue = 2
    } else if (value.indexOf('/') > -1) {
      let indexArr = value.split('/')
      isNaN(indexArr[0])
        ? (refs.value[refName].average01 = 0)
        : (refs.value[refName].average01 = indexArr[0])
      refs.value[refName].average02 = indexArr[1]
      insValue = 3
    } else {
      insValue = 4
      refs.value[refName].checkboxList = value.split(',')
    }
  } else if (name == 'day') {
    if (value === '*') {
      insValue = 1
    } else if (value == '?') {
      insValue = 2
    } else if (value.indexOf('-') > -1) {
      let indexArr = value.split('-')
      isNaN(indexArr[0])
        ? (refs.value[refName].cycle01 = 0)
        : (refs.value[refName].cycle01 = indexArr[0])
      refs.value[refName].cycle02 = indexArr[1]
      insValue = 3
    } else if (value.indexOf('/') > -1) {
      let indexArr = value.split('/')
      isNaN(indexArr[0])
        ? (refs.value[refName].average01 = 0)
        : (refs.value[refName].average01 = indexArr[0])
      refs.value[refName].average02 = indexArr[1]
      insValue = 4
    } else if (value.indexOf('W') > -1) {
      let indexArr = value.split('W')
      isNaN(indexArr[0])
        ? (refs.value[refName].workday = 0)
        : (refs.value[refName].workday = indexArr[0])
      insValue = 5
    } else if (value === 'L') {
      insValue = 6
    } else {
      refs.value[refName].checkboxList = value.split(',')
      insValue = 7
    }
  } else if (name == 'week') {
    if (value === '*') {
      insValue = 1
    } else if (value == '?') {
      insValue = 2
    } else if (value.indexOf('-') > -1) {
      let indexArr = value.split('-')
      isNaN(indexArr[0])
        ? (refs.value[refName].cycle01 = 0)
        : (refs.value[refName].cycle01 = indexArr[0])
      refs.value[refName].cycle02 = indexArr[1]
      insValue = 3
    } else if (value.indexOf('#') > -1) {
      let indexArr = value.split('#')
      isNaN(indexArr[0])
        ? (refs.value[refName].average01 = 1)
        : (refs.value[refName].average01 = indexArr[0])
      refs.value[refName].average02 = indexArr[1]
      insValue = 4
    } else if (value.indexOf('L') > -1) {
      let indexArr = value.split('L')
      isNaN(indexArr[0])
        ? (refs.value[refName].weekday = 1)
        : (refs.value[refName].weekday = indexArr[0])
      insValue = 5
    } else {
      refs.value[refName].checkboxList = value.split(',')
      insValue = 6
    }
  } else if (name == 'year') {
    if (value == '') {
      insValue = 1
    } else if (value == '*') {
      insValue = 2
    } else if (value.indexOf('-') > -1) {
      insValue = 3
    } else if (value.indexOf('/') > -1) {
      insValue = 4
    } else {
      refs.value[refName].checkboxList = value.split(',')
      insValue = 5
    }
  }
  refs.value[refName].radioValue = insValue
}

// 表单选项的子组件校验数字格式（通过-props传递）
function checkNumber(value, minLimit, maxLimit) {
  // 检查必须为整数
  value = Math.floor(value)
  if (value < minLimit) {
    value = minLimit
  } else if (value > maxLimit) {
    value = maxLimit
  }
  return value
}

// 隐藏弹窗
function hidePopup() {
  emit('hide')
}

// 填充表达式
function submitFill() {
  emit('fill', crontabValueString)
  hidePopup()
}

const crontabValueString = computed(() => {
  let obj = crontabValueObj.value
  return (
    obj.second +
    ' ' +
    obj.min +
    ' ' +
    obj.hour +
    ' ' +
    obj.day +
    ' ' +
    obj.month +
    ' ' +
    obj.week +
    (obj.year === '' ? '' : ' ' + obj.year)
  )
})

function clearCron() {
  // 还原选择项
  crontabValueObj.value = {
    second: '*',
    min: '*',
    hour: '*',
    day: '*',
    month: '*',
    week: '?',
    year: ''
  }
  for (let j in crontabValueObj.value) {
    changeRadio(j, crontabValueObj.value[j])
  }
}

watch(() => props.expression, resolveExp)
</script>

<style scoped>
.pop_btn {
  text-align: center;
  margin-top: 20px;
}
.popup-main {
  position: relative;
  margin: 10px auto;
  background: #fff;
  border-radius: 5px;
  font-size: 12px;
  overflow: hidden;
}
.popup-title {
  overflow: hidden;
  line-height: 34px;
  padding-top: 6px;
  background: #f2f2f2;
}
.popup-result {
  box-sizing: border-box;
  line-height: 24px;
  margin: 25px auto;
  padding: 15px 10px 10px;
  border: 1px solid #ccc;
  position: relative;
}
.popup-result .title {
  position: absolute;
  top: -28px;
  left: 50%;
  width: 140px;
  font-size: 14px;
  margin-left: -70px;
  text-align: center;
  line-height: 30px;
  background: #fff;
}
.popup-result table {
  text-align: center;
  width: 100%;
  margin: 0 auto;
}
.popup-result table span {
  display: block;
  width: 100%;
  font-family: arial;
  line-height: 30px;
  height: 30px;
  white-space: nowrap;
  overflow: hidden;
  border: 1px solid #e8e8e8;
}
.popup-result-scroll {
  font-size: 12px;
  line-height: 24px;
  height: 10em;
  overflow-y: auto;
}
</style>
